| Deposit ID | 10096234 |
|---|---|
| MRDS ID | W013427 |
| Record type | Site |
| Current site name | Last Chance-Shady Tree Mine |
| Alternate or previous names | Staatz Loc. No. 82 |
| Related records | 10123468, 10269704 |
| Geographic coordinates: | -113.46284, 44.93683 (WGS84) |
|---|---|
| Elevation | 2271 |
| Relative position | 2.6 MILES SW OF LEMHI PASS |
Political divisions (FIPS codes)
Beaverhead(county)
Montana(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Lemhi Pass(quadrangle 1:24,000 scale)
Leadore(quadrangle 1:100,000 scale)
Dubois(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Red Rock(hydrologic unit)
Missouri Headwaters(hydrologic accounting unit)
Missouri Headwaters(hydrologic subregion)
Missouri(hydrologic region)
Federal lands
Beaverhead-Deerlodge National Forest(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | Montana | Beaverhead |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Montana Principal | 010S | 015W | 29 | Montana |
| Commodity | Importance |
|---|---|
| Thorium | Primary |
| Uranium | Secondary |
| Materials | Type of material |
|---|---|
| Thorite | Ore |
| Barite | Gangue |
| Chalcedony | Gangue |
| Goethite | Gangue |
| Microcline | Gangue |
| Specularite | Gangue |
| Result | TH AVERAGES .6 |
|---|
| Host or associated | Host | ||||
|---|---|---|---|---|---|
| Rock type | Metamorphic Rock > Metasedimentary Rock > Quartzite | ||||
| |||||
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Argillite |
| Rock unit name | Belt Series, Metamorphosed Sediments |
| Rock description | Belt Series, Metamorphosed Sediments |
| (1) | -113.46284, 44.93683 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Folding And Faulting Locally |
| Type of structure | Local |
| Structure description | In The District, Veins Are E-W Trending Tension Fractures And Nw Trending Shear Fractures |
| Strike | N 65 W |
|---|---|
| Dip | 60 SW |
| Thickness | 9.14M |
| Length | 1188.72M |
| Width | 7M |
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Deposit size | Large |
| Significant | No |
| Discovery year | 1947 |
| Discoverer | R. A. Wellborn |
| District name | Lemhi Pass District |
|---|
| Type | Owner |
|---|---|
| Owner | Sawyer - Adecor Inter. |
| Home office | 3780 Wilshire Blvd., Los Angeles, Calif. 90010 |
| Type | In-situ | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Estimate year | 1972 | ||||||||||||||
| |||||||||||||||
| Type of workings | Underground |
|---|---|
| Length | 243.84M |
| Overall depth | 45.72M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | W013427 |
SRC.REF: GEACH R. D., 1972
GEACH, 1972, MINES & MINERAL DEPOSITS - BEAVERHEAD CO., MT. BUREAU MINES & GEOLOGY BULL. 85.
LAWSON, 1974, DIRECTORY OF MINING ENTERPRISES FOR 1974, MT. BUREAU MINES & GEOLOGY BULL. 95.
1953 GEOLMAP TRITES A. F., TOOKER E. W., BULL. 988-H
1962 GEOLMAP SHARP W. M., CAVENDER W. S., BULL 1126
1972 GEOLMAP STAATZ M. H., BULL 1351
| Subject category | Comment text |
|---|---|
| Deposit | Discovery Year: LATE 1940'S |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-APR-1976 | Mlynarczyk, Meg S.; Krohn, D. | U.S. Geological Survey | |
| Updater | 01-DEC-1979 | Doyle, Brien (Wells, John) | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.